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Example 26 with ObjAttribute

use of org.apache.cayenne.map.ObjAttribute in project cayenne by apache.

the class ObjRelationshipInfo method initMapKeys.

private void initMapKeys() {
    this.mapKeys.clear();
    mapKeys.add(DEFAULT_MAP_KEY);
    /**
     * Object target can be null when selected target DbEntity has no
     * ObjEntities
     */
    if (objectTarget == null) {
        return;
    }
    for (ObjAttribute attribute : this.objectTarget.getAttributes()) {
        mapKeys.add(attribute.getName());
    }
    view.mapKeysCombo.removeAllItems();
    for (String s : mapKeys) view.mapKeysCombo.addItem(s);
    if (mapKey != null && !mapKeys.contains(mapKey)) {
        mapKey = DEFAULT_MAP_KEY;
        view.mapKeysCombo.setSelectedItem(mapKey);
    }
}
Also used : ObjAttribute(org.apache.cayenne.map.ObjAttribute)

Example 27 with ObjAttribute

use of org.apache.cayenne.map.ObjAttribute in project cayenne by apache.

the class ObjEntityHandlerTest method testLoad.

@Test
public void testLoad() throws Exception {
    final DataMap map = new DataMap();
    assertEquals(0, map.getObjEntities().size());
    parse("obj-entity", new HandlerFactory() {

        @Override
        public NamespaceAwareNestedTagHandler createHandler(NamespaceAwareNestedTagHandler parent) {
            return new ObjEntityHandler(parent, map);
        }
    });
    assertEquals(1, map.getObjEntities().size());
    ObjEntity entity = map.getObjEntity("ArtistCallback");
    assertNotNull(entity);
    assertTrue(entity.isAbstract());
    assertTrue(entity.isReadOnly());
    assertTrue(entity.isServerOnly());
    assertFalse(entity.isClientAllowed());
    assertEquals(3, entity.getAttributes().size());
    assertEquals(8, entity.getCallbackMethods().size());
    assertEquals(ObjEntity.LOCK_TYPE_OPTIMISTIC, entity.getDeclaredLockType());
    assertEquals("org.apache.cayenne.testdo.testmap.ArtistCallback", entity.getClassName());
    assertNull("super.class should be suppressed by super entity", entity.getSuperClassName());
    assertEquals("Artist", entity.getSuperEntityName());
    assertEquals("client.class", entity.getClientClassName());
    assertNull("client.super.class should be suppressed by super entity", entity.getClientSuperClassName());
    assertEquals("ARTIST_CT", entity.getDbEntityName());
    ObjAttribute attribute = entity.getAttribute("artistName");
    assertNotNull(attribute);
    assertEquals("NAME", attribute.getDbAttributeName());
    assertEquals("java.lang.String", attribute.getType());
    assertTrue(attribute.isUsedForLocking());
    attribute = entity.getAttribute("dateOfBirth");
    assertNotNull(attribute);
    assertNull(attribute.getDbAttributeName());
    assertEquals("java.util.Date", attribute.getType());
    assertFalse(attribute.isUsedForLocking());
    attribute = entity.getAttribute("embeddable1");
    assertNotNull(attribute);
    assertNull(attribute.getDbAttributeName());
    assertEquals("org.apache.cayenne.testdo.embeddable.Embeddable1", attribute.getType());
    assertFalse(attribute.isUsedForLocking());
    String override = entity.getDeclaredAttributeOverrides().get("name");
    assertEquals("parent.child.name", override);
}
Also used : ObjEntity(org.apache.cayenne.map.ObjEntity) ObjAttribute(org.apache.cayenne.map.ObjAttribute) DataMap(org.apache.cayenne.map.DataMap) Test(org.junit.Test)

Example 28 with ObjAttribute

use of org.apache.cayenne.map.ObjAttribute in project cayenne by apache.

the class ASTObjPathIT method testEvaluate_ObjEntity.

@Test
public void testEvaluate_ObjEntity() {
    ASTObjPath node = new ASTObjPath("paintingArray.paintingTitle");
    ObjEntity ae = context.getEntityResolver().getObjEntity(Artist.class);
    Object target = node.evaluate(ae);
    assertTrue(target instanceof ObjAttribute);
}
Also used : ObjEntity(org.apache.cayenne.map.ObjEntity) ObjAttribute(org.apache.cayenne.map.ObjAttribute) Test(org.junit.Test)

Example 29 with ObjAttribute

use of org.apache.cayenne.map.ObjAttribute in project cayenne by apache.

the class DefaultSelectTranslator method appendQueryColumns.

/**
 * Appends columns needed for object SelectQuery to the provided columns
 * list.
 */
<T> List<ColumnDescriptor> appendQueryColumns(final List<ColumnDescriptor> columns, SelectQuery<T> query, ClassDescriptor descriptor, final String tableAlias) {
    final Set<ColumnTracker> attributes = new HashSet<>();
    // fetched attributes include attributes that are either:
    // 
    // * class properties
    // * PK
    // * FK used in relationship
    // * joined prefetch PK
    ObjEntity oe = descriptor.getEntity();
    PropertyVisitor visitor = new PropertyVisitor() {

        public boolean visitAttribute(AttributeProperty property) {
            ObjAttribute oa = property.getAttribute();
            resetJoinStack();
            Iterator<CayenneMapEntry> dbPathIterator = oa.getDbPathIterator();
            while (dbPathIterator.hasNext()) {
                Object pathPart = dbPathIterator.next();
                if (pathPart == null) {
                    throw new CayenneRuntimeException("ObjAttribute has no component: %s", oa.getName());
                } else if (pathPart instanceof DbRelationship) {
                    DbRelationship rel = (DbRelationship) pathPart;
                    dbRelationshipAdded(rel, JoinType.LEFT_OUTER, null);
                } else if (pathPart instanceof DbAttribute) {
                    DbAttribute dbAttr = (DbAttribute) pathPart;
                    appendColumn(columns, oa, dbAttr, attributes, null, tableAlias);
                }
            }
            return true;
        }

        public boolean visitToMany(ToManyProperty property) {
            visitRelationship(property);
            return true;
        }

        public boolean visitToOne(ToOneProperty property) {
            visitRelationship(property);
            return true;
        }

        private void visitRelationship(ArcProperty property) {
            resetJoinStack();
            ObjRelationship rel = property.getRelationship();
            DbRelationship dbRel = rel.getDbRelationships().get(0);
            List<DbJoin> joins = dbRel.getJoins();
            for (DbJoin join : joins) {
                DbAttribute src = join.getSource();
                appendColumn(columns, null, src, attributes, null, tableAlias);
            }
        }
    };
    descriptor.visitAllProperties(visitor);
    // stack should be reset, because all root table attributes go with "t0"
    // table alias
    resetJoinStack();
    // add remaining needed attrs from DbEntity
    DbEntity table = oe.getDbEntity();
    for (DbAttribute dba : table.getPrimaryKeys()) {
        appendColumn(columns, null, dba, attributes, null, tableAlias);
    }
    if (query instanceof PrefetchSelectQuery) {
        // for each relationship path add PK of the target entity...
        for (String path : ((PrefetchSelectQuery) query).getResultPaths()) {
            ASTDbPath pathExp = (ASTDbPath) oe.translateToDbPath(ExpressionFactory.exp(path));
            // add joins and find terminating element
            resetJoinStack();
            PathComponent<DbAttribute, DbRelationship> lastComponent = null;
            for (PathComponent<DbAttribute, DbRelationship> component : table.resolvePath(pathExp, getPathAliases())) {
                if (component.getRelationship() != null) {
                    // do not invoke dbRelationshipAdded(), invoke
                    // pushJoin() instead. This is to prevent
                    // 'forcingDistinct' flipping to true, that will result
                    // in unneeded extra processing and sometimes in invalid
                    // results (see CAY-1979). Distinctness of each row is
                    // guaranteed by the prefetch query semantics - we
                    // include target ID in the result columns
                    getJoinStack().pushJoin(component.getRelationship(), component.getJoinType(), null);
                }
                lastComponent = component;
            }
            // process terminating element
            if (lastComponent != null) {
                DbRelationship relationship = lastComponent.getRelationship();
                if (relationship != null) {
                    String labelPrefix = pathExp.getPath();
                    DbEntity targetEntity = relationship.getTargetEntity();
                    for (DbAttribute pk : targetEntity.getPrimaryKeys()) {
                        // note that we my select a source attribute, but
                        // label it as
                        // target for simplified snapshot processing
                        appendColumn(columns, null, pk, attributes, labelPrefix + '.' + pk.getName());
                    }
                }
            }
        }
    }
    // handle joint prefetches directly attached to this query...
    if (query.getPrefetchTree() != null) {
        // perform some sort of union or sub-queries.
        for (PrefetchTreeNode prefetch : query.getPrefetchTree().getChildren()) {
            prefetch.setEntityName(oe.getName());
        }
        for (PrefetchTreeNode prefetch : query.getPrefetchTree().adjacentJointNodes()) {
            // for each prefetch add all joins plus columns from the target
            // entity
            Expression prefetchExp = ExpressionFactory.exp(prefetch.getPath());
            ASTDbPath dbPrefetch = (ASTDbPath) oe.translateToDbPath(prefetchExp);
            resetJoinStack();
            DbRelationship r = null;
            for (PathComponent<DbAttribute, DbRelationship> component : table.resolvePath(dbPrefetch, getPathAliases())) {
                r = component.getRelationship();
                dbRelationshipAdded(r, JoinType.LEFT_OUTER, null);
            }
            if (r == null) {
                throw new CayenneRuntimeException("Invalid joint prefetch '%s' for entity: %s", prefetch, oe.getName());
            }
            // add columns from the target entity, including those that are matched
            // against the FK of the source entity.
            // This is needed to determine whether optional relationships are null
            // go via target OE to make sure that Java types are mapped correctly...
            ObjRelationship targetRel = (ObjRelationship) prefetchExp.evaluate(oe);
            ObjEntity targetEntity = targetRel.getTargetEntity();
            String labelPrefix = dbPrefetch.getPath();
            PropertyVisitor prefetchVisitor = new PropertyVisitor() {

                public boolean visitAttribute(AttributeProperty property) {
                    ObjAttribute oa = property.getAttribute();
                    Iterator<CayenneMapEntry> dbPathIterator = oa.getDbPathIterator();
                    while (dbPathIterator.hasNext()) {
                        Object pathPart = dbPathIterator.next();
                        if (pathPart == null) {
                            throw new CayenneRuntimeException("ObjAttribute has no component: %s", oa.getName());
                        } else if (pathPart instanceof DbRelationship) {
                            DbRelationship rel = (DbRelationship) pathPart;
                            dbRelationshipAdded(rel, JoinType.INNER, null);
                        } else if (pathPart instanceof DbAttribute) {
                            DbAttribute dbAttr = (DbAttribute) pathPart;
                            appendColumn(columns, oa, dbAttr, attributes, labelPrefix + '.' + dbAttr.getName());
                        }
                    }
                    return true;
                }

                public boolean visitToMany(ToManyProperty property) {
                    return true;
                }

                public boolean visitToOne(ToOneProperty property) {
                    return true;
                }
            };
            ClassDescriptor prefetchClassDescriptor = entityResolver.getClassDescriptor(targetEntity.getName());
            prefetchClassDescriptor.visitAllProperties(prefetchVisitor);
            // append remaining target attributes such as keys
            DbEntity targetDbEntity = r.getTargetEntity();
            for (DbAttribute attribute : targetDbEntity.getAttributes()) {
                appendColumn(columns, null, attribute, attributes, labelPrefix + '.' + attribute.getName());
            }
        }
    }
    return columns;
}
Also used : ArcProperty(org.apache.cayenne.reflect.ArcProperty) ObjAttribute(org.apache.cayenne.map.ObjAttribute) ASTDbPath(org.apache.cayenne.exp.parser.ASTDbPath) ClassDescriptor(org.apache.cayenne.reflect.ClassDescriptor) CayenneRuntimeException(org.apache.cayenne.CayenneRuntimeException) DbAttribute(org.apache.cayenne.map.DbAttribute) ToOneProperty(org.apache.cayenne.reflect.ToOneProperty) CayenneMapEntry(org.apache.cayenne.util.CayenneMapEntry) DbEntity(org.apache.cayenne.map.DbEntity) PrefetchTreeNode(org.apache.cayenne.query.PrefetchTreeNode) HashSet(java.util.HashSet) ObjRelationship(org.apache.cayenne.map.ObjRelationship) AttributeProperty(org.apache.cayenne.reflect.AttributeProperty) PrefetchSelectQuery(org.apache.cayenne.query.PrefetchSelectQuery) ObjEntity(org.apache.cayenne.map.ObjEntity) ToManyProperty(org.apache.cayenne.reflect.ToManyProperty) Expression(org.apache.cayenne.exp.Expression) DbRelationship(org.apache.cayenne.map.DbRelationship) DbJoin(org.apache.cayenne.map.DbJoin) PropertyVisitor(org.apache.cayenne.reflect.PropertyVisitor)

Example 30 with ObjAttribute

use of org.apache.cayenne.map.ObjAttribute in project cayenne by apache.

the class HybridDataObjectIT method addRuntimeAttribute.

private void addRuntimeAttribute(Class<?> entityClass, String attributeName, String attributeType) {
    ObjEntity entity = runtime.getDataDomain().getEntityResolver().getObjEntity(entityClass);
    ObjAttribute attribute = new ObjAttribute();
    attribute.setName(attributeName);
    attribute.setDbAttributePath(attributeName);
    attribute.setType(attributeType);
    entity.addAttribute(attribute);
}
Also used : ObjEntity(org.apache.cayenne.map.ObjEntity) ObjAttribute(org.apache.cayenne.map.ObjAttribute)

Aggregations

ObjAttribute (org.apache.cayenne.map.ObjAttribute)81 ObjEntity (org.apache.cayenne.map.ObjEntity)57 DbAttribute (org.apache.cayenne.map.DbAttribute)31 ObjRelationship (org.apache.cayenne.map.ObjRelationship)27 DbEntity (org.apache.cayenne.map.DbEntity)26 Test (org.junit.Test)26 DbRelationship (org.apache.cayenne.map.DbRelationship)19 DbJoin (org.apache.cayenne.map.DbJoin)12 DataMap (org.apache.cayenne.map.DataMap)9 ClassDescriptor (org.apache.cayenne.reflect.ClassDescriptor)9 HashMap (java.util.HashMap)8 CayenneRuntimeException (org.apache.cayenne.CayenneRuntimeException)8 AttributeProperty (org.apache.cayenne.reflect.AttributeProperty)8 PropertyVisitor (org.apache.cayenne.reflect.PropertyVisitor)8 ToManyProperty (org.apache.cayenne.reflect.ToManyProperty)8 ToOneProperty (org.apache.cayenne.reflect.ToOneProperty)8 ArrayList (java.util.ArrayList)7 DataChannelDescriptor (org.apache.cayenne.configuration.DataChannelDescriptor)7 HashSet (java.util.HashSet)6 Expression (org.apache.cayenne.exp.Expression)6